<template>
  <el-form ref="formRef" :model="form" label-width="100px" style="text-align: center;padding-bottom:10px">
    <el-upload name="avatar" :headers="headers" class="avatar-uploader" :action="getServerUrl() + 'user/uploadImage'"
      :show-file-list="false" :on-success="handleAvatarSuccess" :before-upload="beforeAvatarUpload">
      <img v-if="imageUrl" :src="imageUrl" class="avatar" />
      <el-icon v-else class="avatar-uploader-icon">
        <Plus />
      </el-icon>
    </el-upload>
    <el-button @click="handleConfirm" size="small" style="margin-top: 10px;">确认更换</el-button>
  </el-form>


</template>

<script setup>

import { defineProps, ref } from "vue";
import requestUtil, { getServerUrl } from "@/util/request";
import { ElMessage } from 'element-plus'
import { Plus } from '@element-plus/icons-vue'

// 获取全局状态管理信息
import { useUserStore } from '@/stores/user';
const UserStore = useUserStore();

const props = defineProps(
  {
    user: {
      type: Object,
      default: () => {
      },
      required: true
    }
  }
)

const headers = ref({
  Authorization: window.sessionStorage.getItem('token')
})

const form = ref({
  id: -1,
  avatar: ''
})

const formRef = ref(null)
const imageUrl = ref("")

form.value = props.user;
imageUrl.value = getServerUrl() + 'media/userAvatar/' + form.value.avatar

const handleAvatarSuccess = (res) => {
  imageUrl.value = getServerUrl() + 'media/userAvatar/' + res.title
  form.value.avatar = res.title;
}


const beforeAvatarUpload = (file) => {
  const isJPG = file.type === 'image/jpeg'
  const isLt2M = file.size / 1024 / 1024 < 2

  if (!isJPG) {
    ElMessage.error('图片必须是jpg格式')
  }
  if (!isLt2M) {
    ElMessage.error('图片大小不能超过2M!')
  }
  return isJPG && isLt2M
}

const handleConfirm = async () => {
  let result = await requestUtil.post("user/updateAvatar", form.value);
  let data = result.data;
  if (data.code == 200) {
    UserStore.currentUser.avatar = data.user.avatar
    window.sessionStorage.setItem('currentUser', JSON.stringify(UserStore.currentUser))
    ElMessage.success(data.msg);
  } else {
    ElMessage.error(data.errorInfo);
  }
}

</script>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.avatar-uploader .el-upload:hover {
  border-color: #409eff;
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}

.avatar {
  width: 120px;
  height: 120px;
  display: block;
}
</style>
